What is the recommended location for a cooling coil on a suspended or horizontal furnace?

The recommended location for a cooling coil on a suspended or horizontal furnace is on the supply air side. This placement is crucial because it allows the cool air produced by the coil to mix with the warm air generated by the furnace before it is distributed throughout the building. By having the cooling coil on the supply side, it effectively reduces the temperature of the air being circulated, providing efficient cooling and maintaining the desired indoor climate.

Additionally, positioning the cooling coil on the supply side helps prevent the condensation that can occur if the coil were located in other areas. By maximizing the mixing of air before it enters the living spaces, it ensures more uniform temperature control and enhances the overall heating and cooling efficiency of the system. Therefore, having the cooling coil on the supply air side is both practical and beneficial for optimizing system performance.